Valve-actuating mechanism



June 28, 1927. 1,634,198

C. R. KlNKAlD ET AL VALVE ACTUATING MECHANISM Filed June 7. 1926 flwyzdmb ATTORNEY WITNESS: I 7

Patented dune 28, 1927.

UNITED STATES PATENT OFFICE.

CHARLES R. KINKAID AND EMI'I. '1. SHREVE, OF BOTAN, TExAS.

VALVE-ACTUATING MECHANISM.

Application filed June 7,

Our present invention has reference to valve actuating means, and our ob ect is the provision of a means for silencing the contacting engagement between the tappet and a valve stem.

parts comprising a tappet for insuring the free movement thereof through the tappet guide. I

' To the attainment of the above broadly stated objects and others which will present themselves as the nature of the lnventlon is better understood, the improvement further resides in certain other novel features of construction, combination and operative association of parts, a satisfactory embodiment of which is illustrated by the drawings which accompany and form part of this application.'

In the drawings:

Figure 1 is a side elevation of our 1mprovement, with parts being in sectlon.

Figure 2 is a topplan view of the lower or head member of the tappet.

In Figure 1 of the drawings, the valve 1 is seated and has its stem 2 received through a suitable guide. The valve is retalned seated through the medium of the usual spring 3 whose outer end is arranged upon a spring seat 4 secured on the stem 2 m the usual manner.

Below the stem there is the usual tappet guide 5, and movable through this lde there is a tappet or valve lifter that orms the subject matter of this invention.

The improvement comprises a lower member or section 6 having a disc head 7 to be engaged by the engine cam 8. The head, at its juncture with its body is formed with an inwardly rounded neck 9 and has, adjacent its outer end, an annular depression 10. The sides ofthe body has longitudinally extended substantially V-shaped oil grooves 11 which communicate with the depression 10 and with the neck 9. On its outer end the disc 13. 'the tappet section 6, and passing through 1926. Serial No. 114,858.

body ofthe member 6 is provided with outstanding gins 12 and with a compressible ecured on the said outer end of the ring disc 13 there is a coil spring 14. This spring is received in a central bore in the outer tappet section 15. The section 15 is provided with openings 16 that receive the pins 12 therein and screwed in the bore of the tappet section 15 and contacted by the spring 14 there is the tappet screw 17. On the outer end of the screw 17 there is a nut or head 18, and also threadedly engaging the tafppet screw and resting on the outer end 0 the tappet section 15 there is a lock nut 19. i 4i The spring 14 influences the tappet section 16 and the screw 17 thereon into proper contacting engagement with the valve stem 2. The pins 12, in the tappet section 6, received in the openings 16 in the tappet section 15, will insure a proper longltudinal alignment of both sections, while the ring gasket 13 serves as a cushion to absorb any jar and noise created thereby incident to the sections being brought toward each other. The tappet screw may be readily adjusted in the tapper, and wlth a tappet or valve lift as above described we have found from practical experience that valves will be properly opera-ted for an indefinite period of tlme without any shock or jar and consequent knocking between the tappet parts and the valve stem.

Having described the invention, claim A valve lift comprising a tappet and a guide therefor, said -tappet including two sections, one to be engaged by the cam of the engine and the other to engage with the valve stem of the engine, said first mentioned section having a body portion received in the guide and having a head portion to be contacted by the cam, said body portion having a reduced neck at its junc pins, :1 compress tappet sections, the bore of the tion, a. bindingnut thereon contacting with 5 said section and a spring receivedm the bore' of the last mentioned tappet section,

contacting with ible ring gasket between the in and also contacting with the first mena. tappet screw threaded in tioned tappet section. last mentioned tappct see- I In testimony a whe turee.

CHARLES R. KINKAID.

the end of the screw there- EMIT SHREVEL reof we aflix our signa- 10 

